Improvement in clevises for plows



J. VAN BROCKLIN.

Plow-Clevis.

No.- 5,016. 4 Patented Mar. 13, 1-847.-

to hold a piece of the shape and size of Fig.

UNITED STATES PATENT OFFICE.

JNO. VAN BROOKLIN, OF MIDDLEPORT,NEW YORK.

IMPROVEMENT lN CLEVISES FOR P'LOWS.

Specification forming part of Letters Patent No. 5,016, dated March 13,1847.

To all whom it may concern:

Be it known that I, JOHN VAN BROCKLIN, of Middleport, in the county ofNiagara and State of New York, have invented a new and Improved Mode ofManufacturing Cast-Iron Olevises for Flows; and I do hereby declare thatthe following is a full, clear, and exact description of theconstructionanthoperation of the same, reference being had to the annexed drawings,making part of this specification, in which- Figure l is a perspectiveview of the clevis. Fig. 2 is a side view of the two sides which arebolted to the sides of the beam. Fig. 3 is a piece of the shaperepresented, which stands in a horizontal position directly in front, ofth beam.

The nature of my invention consists in making a cast-iron clevis thatcan be readily used on any plows and be altered at the pleasure of theuser, so as to draw up or down and to and from land, as may be desired.

This clevis is made of three pieces of castiron, four wrought-ironbolts, and onesmall wrought-iron clevis. First, therearetwopieces of theshape and size of Fig. 2, about onehalf of an inch thick. These piecesare in= tended to be bolted to the sides of the beam, with the holes a aa projecting forward of the beam through the holes 0 b. (t a a are holesleft for the purpose of putting a bolt through 3, which is also made ofcast-iron. There is only one bolt, but there are three bolt-holes. Theobject of these holes is to set the plow to draw up or down. Fig. 3 isthen put with the arms bl inside the other two pieces directly in frontof the beam and secured by a bolt, K, running through these arms andthrough one of the holes a a at. These arms are about three-fourths ofan inch thick and about two inches deep. The front part of this Fig. 3,and which is marked m, is of the size designated in the figure, andabout one inch thick. There are five holes, 61 d d d d, left to receivea bolt holding a small clevis,f, in Fig. 1, to which the whiffletrcesare to be attached.

In Fig. 1, h h represent the Fig. 2 in combination with the other parts.0 represents the Fig. 3 in like combination with the other parts. h andg in Fig. 1 represent the bolts running through the holes I) and c inFig. 2, as well as in Fig. 1. K represents the bolt which holds the part0 to the parts h h. E represents the bolt which holds the small clevis fto the part 0.

Theoclevisf is made of wrought-iron, the part 0, when in use, is in ahorizontal position, and by means of the holes 01 d d d d the shaft canbe changed so as to. draw to or from land, which is done by changing theclevisf from one hole to the other.

The advantages of this clevis arise from its great durability andadaptation to all kinds of plows. The cast-iron part will hold the draftof three teams and is not liable to wear, and by means of the holes a aa can be set to draw up or down at the pleasure of the user, and bymeans of the holes at d d d d it can be set to draw to or from land atthe pleasure of the user. It is set to move up and down by moving thehorizontal part 0 in Fig. 1 from one hole to the other, and from or toland by moving the small wrought-iron clevis from one side to the otherby the holes (I d d d d, making an article at once cheap and durablethat will gage any plow either in depth or width of furrow.

What I claim as my invention, and desire to secure by Letters Patent, is

The construction of a double-gaged castiron clevis, substantially asdescribed.

JOHN VAN BROOKLIN. I

